The one my dog dropped, it didn't crack or anything. It seems hopeful that it will still hatch. What if I go buy a couple brand new chicks?And just sneak them under her? Is that an option?
That can be done although you need to be on your game to ensure proper imprinting both ways between chicks and hen. New chicks ideally freshly hatched. I would introduce new chicks when lights go out and keep light levels low overnight.